💚 chznge flask installation

.circleci/config.yml

@@ -20,7 +20,6 @@ jobs:
             /usr/local/bin/python -m pip install --upgrade pip
             apk update && apk add postgresql-dev gcc python3-dev musl-dev
             pip install -r requirements/dev.txt --user
-            pip install flask
       - save_cache:
           key: deps9-{{ checksum "Pipfile.lock" }}
           paths:
@@ -42,6 +41,7 @@ jobs:
       - run:
           name : test
           command: |
+            pip install flask
             flask db upgrade
             flask test
             unset DATABASE_URL